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IV63854: FAILING FORK IN POPEN LEAVES PIPE FILE DESCRIPTORS BEHIND

A fix is available

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APAR status

  • Closed as program error.

Error description

  • popen() creates the fifo using the pipe system call.
    If the then following fork fails, this fifo is not
    closed.
    

Local fix

Problem summary

  • A system might run into a low memory situation when,
    there is a running process which is calling popen()
    repeatedly, and popen() is failing because of fork()
    failure.
    

Problem conclusion

  • Added code changes to perform correct clean up in the
    popen(), if the popen() call fails because of fork
    failure.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV63854

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-08-21

  • Closed date

    2014-08-21

  • Last modified date

    2015-11-22

  • APAR is sysrouted FROM one or more of the following:

    IV61226

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U871299

       UP15/11/22 I 1000

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Document Information

Modified date:
22 November 2015